AR-STONER AR-15 Build Kit with Upper Receiver Assembly 5.56x45mm NATO 18″ Barrel Mid Length 15″ M-LOK Handguard, Complete Lower Receiver Parts Kit, Stock Assembly 6-Position Mil-Spec Collapsible

This AR-STONER AR-15 Upper Receiver provides style, function, affordability to your AR-15. The A3 upper attaches to virtually any standard AR-15 lower receiver. Machined with M4 feed ramps, this upper features an M-Lok handguard and 4150 Chrome Moly Vanadium barrel with a matte finish to top it off. M-Lok Handguard slots allow mounting of popular M-Lok compatible accessories directly to precision cutouts and features integrated QD sling mounts with a sleek design that does not sacrifice strength or ergonomics.

The AR-STONER Carbine Kit also includes a M4 mil-spec 6-position stock assembly. The buffer tube is machined from 6061-T6 aluminum and given a hard coat anodized finish to withstand years of abuse. The 6-position telescoping stock features a built-in sling swivel to mount your favorite rifle sling.

Included in the Carbine Kit is the AR-STONER Lower Parts Kit which includes everything needed to build a complete lower receiver, except a stripped lower receiver. All parts are made to standard military specifications.

Lower Parts Kit Includes

• Bolt Catch
• Bolt Catch Plunger
• Bolt Catch Roll Pin
• Bolt Catch Spring
• Buffer Retainer
• Buffer Retainer Spring
• Disconnector
• Disconnector Spring
• Hammer
• Hammer Pin
• Hammer Spring
• Magazine Catch
• Magazine Catch Button
• Magazine Catch Spring
• A2 Pistol Grip
• Pistol Grip Lock Washer
• Pistol Grip Screw
• Pivot Pin
• Pivot Pin Detent
• Pivot Pin Detent Spring
• Safety Selector
• Safety Selector Detent
• Safety Selector Detent Spring
• Takedown Pin
• Takedown Pin Detent
• Takedown Pin Detent Spring
• Trigger
• Trigger Guard
• Trigger Guard Roll Pin
• Trigger Pin
• Trigger Spring

M4 Stock Assembly Includes

• M4-Style Adjustable Stock
• 6-Position Mil-Spec Carbine Buffer Tube
• Carbine Length Buffer Tube Spring
• Recoil Buffer
• Castle Nut
• End Plate